When building Incan agricultural terraces, which process limitation was addressed by strategic layering?

💡 Explanation

Layering soil improved fertility because differential erosion sorts particles through gravitational settling, concentrating larger minerals closer to plant root tissues rather than losing essential elements to runoff; therefore terraces were fertile despite steep grades, rather than suffering massive nutrient loss.

• When ancient Mughal gardens redirected water flow via raised channels, which outcome sometimes occurred because of improper settling?
• Which consequence occurs when a navigator misaligns a sextant's mirrors?
• Which risk increases where Inca stone aqueducts exhibited differential settling?
• Which defensive advantage resulted from the angled design of Roman fortification glacis?
• Which optical effect degraded astrolabe accuracy during twilight observations?
• Which combustion outcome occurred given the initial use of gunpowder in Song dynasty flame arrows?